Daniyal Ahmed

10 Questions 17 Answers 0 Followers

Questions related from Daniyal Ahmed

Any efficient procedure for the coupling at alpha position of the following compound???

I was previously using one of the strong base NaOH in order to convert it into sodium naphtholate (as my compound's physical appearance is in flakes form) then at the coupling stage with...

10 October 2019 9,192 3 View

Is there any method to reduce the TDS of the contaminated water?

I have treated my highly contaminated water to make it soft but although i managed to make it soft water, the TDS is still the same as i used Cations Exchange Method. So, Is there any method to...

07 July 2019 3,432 44 View

How to perform an adsorbtion chromotography of a dye?

How to perform an adsorbtion chromotography of a dye which is readily soluble in water? i am currently using silica gel (polar) as a stationary phase and hexane (non-polar organic solvent) as a...

06 June 2019 2,422 6 View

Why diazo salt destabilise in high temperature??

06 June 2019 3,014 6 View

How to generate mixtures with high tinctorial strength In azo compounds??

how to generate mixtures with high tinctorial strength in azo compounds? or the factors that effects the tinctorial strenght in azo compounds??? kindly suggest??

06 June 2019 4,492 3 View

Any procedure for increasing color intensity and it's frequency (lowering wavelenght) ??

does there is any chemical mechanism or procedure through which we can increase the intensity of color and also its frequency (lowering wavelength)??? kindly suggest?

06 June 2019 6,462 2 View

How can I condense o-amino phenol with thiopene-2,5-di carboxylic acid ? Any suggested method?

o-amino phenol condensation with thiopene2,5 di-carboxylic acid? can I carry out condensation in polar solvents?

05 May 2019 2,897 11 View

What is the most feasible method to condense 2-amino-4-t-butyl-phenol with thiopene 2,5-dicarboxylic acid ??

I am trying to make a benzoxazole compound. Is it possible to carry out the condensation with acetic acid?

05 May 2019 8,772 4 View

How to produce a molecule with a complete conjugated azo linked structure and avoid missing conjugated azo link in azo compound structure???

how to produce an intensely coloured molecule with a conjugated azo linked (single/double/ single/ double bonded) structure, and avoid missing conjugated azo link in a structure. Any suggestions??

05 May 2019 2,653 2 View

Does tinctorial strength (hidden strength) of the azo pigments depends upon the ph carried during their coupling reaction?

Any suggestion or opinion on the statement that tinctorial strength (hidden strength) of the azo pigments depends upon the PH which is carried through the coupling reaction??

05 May 2019 3,148 2 View